6683 20240612110430.0 10.25518/0037-9565.11753 DOI SCART-2024-0051 Adassuriya, Janaka Curve of Growth Analysis of SZ Lyn 2024 We present one high-resolution and a time series of 561 low-resolution follow-up spectroscopic observations of SZ Lyn. It is a high-amplitude δ Scuti-type pulsating star in a binary system. The photometric observations reveal the existence of radial and non-radial oscillation modes in SZ Lyn. In spectroscopy, the variation of equivalent width of the line profiles reflects the temperature variations. The equivalent widths of the Balmer lines, Hα, Hβ, and Hγ were measured over the pulsation cycle of SZ Lyn using time sequence spectra. Hence, the temperature profile of SZ Lyn was derived using the curve of growth analysis. Furthermore, the stellar parameters were determined through the best fit analysis of observed and synthetic high-resolution spectral lines. The best fit determines a model of Teff = 6750 K, log g = 3.5 dex, and vrot = 10 km s^{−1} for solar abundance. BL/ 33/ IN12 (BINA) NO Curve of growth Equivalent width Temperature profile Pulsating stars SZ Lyn Ganesh, Shashikiran De Cat, Peter Joshi, Santosh Jayaratne, Chandana Bulletin de la Société Royale des Sciences de Liège 93 2024 2 470-477 peter.decat@ksb-orb.be 2454608 http://publi2-as.oma.be/record/6683/files/Adassuriya2024_BSRSL93_2_470.pdf 2939 http://publi2-as.oma.be/record/6683/files/Adassuriya2024_BSRSL93_2_470.jpg?subformat=icon-180 icon-180 3119 http://publi2-as.oma.be/record/6683/files/Adassuriya2024_BSRSL93_2_470.gif?subformat=icon icon published in REFERD